Improved Disarm is listing Combat Expertise as a prereq.
Do you think this might mean they have un-nerfed Combat Expertise, or just made those manuver feats that much more unappealing in Pathfinder?
Also it looks like having an improved combat manuver gives you a bonus on performing and defending against that manuver... It makes sence, but the bonus (+2) is still pretty crappy IMO.